Hope someone can help. I am frustrated. dodge 3500 diesel, automatic transmission, started to act like this a week ago. When put on drive or reverse with brake on the engine dies. If I catch it fast and push the fuel pedal it starts to go very slowly, especially when puling a loaded trailer. Once I reach 10-15 miles/hour it acts normally. I replaced the fuel filter, trany filter and oil, troutle positioning sensor, without any improvement. When I pool a loaded trailer and have to start from dead point on a very slight up hill, it does not move. Incidentally, a couple of days after it started doing tis, the 4wd dash board light comes on and off, mostly on. Not sure if it is related to my main concern. I had the truck scanned and no code. Thank you.